# -*- coding: UTF-8 -*-
from typing import List
from leetcode_helper import TestcaseHelper, SolutionBase


class Solution(SolutionBase):
    # 解题的方法，命名和Leetcode的保持一致即可
    def removeElement(self, nums: List[int], val: int) -> int:
        count = len(nums)
        if count == 0:
            return 0

        save_index = 0
        for i in range(0, count):
            value = nums[i]
            if value == val:
                nums[i] = '_'
                continue
            else:
                nums[i] = '_'
                nums[save_index] = value
                save_index += 1

        return save_index


if __name__ == '__main__':
    solution = Solution()

    # 按照leetcode的题目说明，将基本的test case填入
    # 每条case的最后一个元素是正确的结果，即期待的结果
    # 使用元组来保存输入的数据，期待的结果
    testcases = [
        ([3, 2, 2, 3], 3, 2),
        ([0, 1, 2, 2, 3, 0, 4, 2], 2, 5)
    ]

    for case_item in testcases:
        # 获取测试用的case和期待的执行结果
        input1 = case_item[0]
        input2 = case_item[1]

        expect = case_item[len(case_item) - 1]

        exec_result = solution.removeElement(input1, input2)

        # 判断执行结果，输出提示信息
        check_result = solution.check_result(expect, exec_result)
        TestcaseHelper.print_case(check_result, case_item, exec_result)

